ANALISIS KELAYAKAN USAHA KERTAS DAUR ULANG  DENGAN PEMANFAATAN LIMBAH KULIT KOPI DAN PELEPAH PISANG. Integrative Perspectives of Social and Science Journal, [S. l.], v. 2, n. 05 Oktober, p. 7780–7792, 2025. Disponível em: https://ipssj.com/index.php/ojs/article/view/908. Acesso em: 21 oct. 2026.